Home / 109,821.20-164,669.38-43,225.23

Finding the Fourth Proportional to 109,821.20, 164,669.38 and 43,225.23

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Solution

The fourth proportional to 109,821.20, 164,669.38 and 43,225.23 is: 64,813.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,821.20 : 164,669.38 = 43,225.23 : x
  2. Step 2: Convert to fraction form
    109,821.20/164,669.38 = 43,225.23/x
  3. Step 3: Cross multiply
    109,821.20x = 164,669.38 × 43,225.23
  4. Step 4: Simplify right side
    109,821.20x = 7,117,871,824.46
  5. Step 5: Solve for x
    x = 7,117,871,824.46/109,821.20
  6. Step 6: Final answer
    x = 64,813.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.